Some 37 people had to be rescued after several cable cars became blocked above the Alps city of Grenoble on Sunday evening. Some of the passengers had to be airlifted to safety by helicopter. Watch the dramatic footage here.

One of many people’s worst fears was realised for 37 people in the French Alps city of Grenoble on Sunday when the cable cars they were in became blocked.

The four cars or bubbles (Les Bulles) as they are known were transporting 37 people from the centre up to the neighbourhood of Bastille at around 7pm when they were derailed by a sudden, violent gust of wind.

Emergency services were called and a specialist rescue team was dispatched to get the passengers out.

Some of those blocked had to endure the frightening experience of being airlifted from the cabins by helicopter while others had to abseil down, as the video below from BFM TV shows.

(Photo: Screengrab, France TV)

Firefighter Benjamin Gadal, said the rescue procedure was “rare”.

Those caught up in the frightening experience spoke of their fears that the cables would break before they were rescued.

“We were a little scared, but it all went quite fast,” one of the blocked passengers named Christian told BFM TV. “We just thought, will the cables hold? Or are we going to end up on the ground?”

In the end it took three hours to evacuate all the passengers from the cable cars. Thankfully no one was hurt, but it was an evening those involved are unlikely to forget.

"Yes, we won't forget it for a long time. It was scary. It's really not nice to have be airlifted out of a cable car," one passenger told France Info TV.